Catheter



y 4, 1954 P. A. RAICHE 2,677,375

CATHETER Filed NOV. 16, 1951 IN V EN TOR.

ATTORN EY Patented May 4, 1954 CATHETER Paul A. Raiche, North Providence, R. L, assignor to Davol Rubber Company, a corporation of Rhode Island Application November 16, 1951, Serial No. 256,756

Claims. (01. 128-349) 1 The present invention relates to surgical appliances, and has particular reference to a novel construction for a catheter.

The principal object of the invention is to provide a catheter construction of the inflatable 5 channel. The cloth inserted strips are of standballoon type which has no distal tip or projection. ard type, manufactured by dipping cloth into Another object of the invention is to provide latex or rubber solution to encase the cloth with a balloon catheter construction having an axial rubber. Y drainage channel with an open end. The catheter H! is preferably manufactured by A further object of the invention is to provide 0 dipping a grooved body form into latex solution a catheter construction having a foraminated and inserting a p e r d inflation tub distal end. an inflation tube form which is dipped, the com- An additional object or" the invention is to municating opening is being formed by burning, provide a catheter having a reinforced foranlin standard manner. When the body and t i a ed distal end for engagement by a stylet. inflation channel are thus formed, the cloth With the above and other objects and advan inserted latex or rubber strips I9, are placed tageous features in view, the invention consists over the distal end 17, in crossed relation and of a novel article of manufacture more fully cemented in place t0 provide a thickened portion described in the detailed description following, d the as mbly s lightly d pp d in latex or in conjunction with the accompanying drawings, 20 the like to cover the body, the strips I9, 20 and and specifically defined in the claims appended the Spaces 011 t ody end tw en t e strip thereto. whereby a preformed balloon blank is positioned In the drawings, over the distal end with the open end of the body Fig. 1 is a side elevation of a ath ter embgdyin substantially the plane of the outer end of the ing th invention; 25 balloon, and cemented in place. It is sometimes Fig. 2 is an enlarged view of the di t l d; desirable to lightly dip the distal end in latex Fig, 3 is a section on th li 3 3 of Fig, 1; and or the like to smoothly finish the distal end, the Fig. 4 is a perspective view of the distal end openings being n d f n ss ryshowing the application of cloth inserted latex T a v d ri d m nufa ur p v d s a strips t th di t end of t t t body novel balloon catheter having no distal drainage before mounting of a, b lloo thereof, tip and a foraminated open end, the foraminated It has been found desirable to provide a p n d having a Strong centrally p s n catheter construction of the balloon type which 517371917 receiving p Although I av has no t 1 t as some patients having described a specific catheter construction, it is flamed or sensitive bladders react unfavorably to Obvious at changes in the article to meet difthe normal type of balloon catheter which has a ferent Catheter requirements y be made withdistal drainage tip. To this end, I provide the ut departing fr m the spirit a d t s p of catheter with a terminal opening, and I mount he invention as defined in the app Claimstransverse reinforcement strips across the open- I Claim: ing 50 that an insertion stylet contacts the strips, A b o ca e having an o at d bo whereby a foraminated drainage opening results a dra nage passage, a b l o fl t o Ch which is closely adjacent t e b ll and an inflatable balloon mounted on the distal Referring to the drawings, the catheter ID has end of the body. the wall of said body at the the usual tubular body H, with a drainage distal end having an Op n communicating the channel :2 d an inflation ll channel 3, t inflation channel with the interior of the balloon, drainage channel having an outflow terminal the n f t y hav cross strips of 010 h connection M and the inflation wall channel havr d r bb r in sub tantially the pl of h ing an angularly ositioned inflation connection Outer end of the balloon and spaced to provide I5 tapered to receive a closure plug or the like. a foraminated inlet to the drainage passage. An inflatable balloon I6 is positioned on the 2. Aballoon catheter having an elongated body, distal end I1 of the catheter, and a communicata drainage passage, a balloon inflation channel, ing opening [8 connects the inflation wall chanand an inflatable balloon mounted on the distal nel It with the interior of the balloon I6 in end of the body, the wall of said body at the standard manner. The distal end I! of the distal end having an opening communicating the catheter is open and substantially flush with the V 2 outer surface of the balloon, and has a foraminated closure formed of crossed strips I9, 20 of cloth inserted latex or rubber which provide foraminated drainage inlets 2| to the drainage inflation channel with the interior of the balloon,

the end of the body having crossed strips of cloth inserted rubber providing a centrally positioned stylet receiving portion in substantially the plane of the outer end of the balloon, said crossed strips being spaced to provide a foraminated inlet to the drainage passage.

3. A balloon catheter'having anelongated body, a drainage passage, a balloon inflation channel in the body wall, and an inflatable balloon mounted on the distal end of the body, the wall of said body at the distal end having an opening communicating the inflation channel with the interior of the balloon, thetendnftthe bndymeing in substantially the plane 'of the outer end :of

the balloon and having a foraminated stylet receiving closure to provide aninletlto the-drainage passage.

4. A balloon catheter having an elongated-body, a drainage passage, a balloon inflation channel in the body wall, and an inflatable balloon mounted on the distal-end of the body,'the-wall of said body at the distal end having arm-opening communicating the inflation channel with ;the

interior of the balloon, the end of the body being open and having crossed strips of cloth inserted rubber in substantially the plane of the outer end of the balloon, said strips being spaced to provide an inlet to the drainage passage.

5. A balloon catheter having an elongated body, a drainage passage, a balloon inflation "channel in the body 'W311, and :an inflatable balloon mounted on the distal end of the body, the wall -Df said body at the distal end having an opencommunicating the inflation channel with the interior of the balloon, the end of the body being openzand having crossed strips of cloth inserted rubber providing a centrally positioned stylet receivin'gportion in substantially the plane of ,thenouter enduof the balloon, said strips being spaced to provide an inlet to the drainage passage.

References Cited in *the file of this patent UNIEEDtSTATES PATENTS Number 

